Search a number
-
+
144243310 = 25312331997
BaseRepresentation
bin10001001100011…
…11101001101110
3101001102022121211
420212033221232
5243411241220
622151345034
73401022301
oct1046175156
9331368554
10144243310
1174470152
124038217a
1323b64893
141522ab38
15c9e3b5a
hex898fa6e

144243310 has 32 divisors (see below), whose sum is σ = 269298432. Its totient is φ = 55568640.

The previous prime is 144243301. The next prime is 144243311. The reversal of 144243310 is 13342441.

It is a super-2 number, since 2×1442433102 = 41612264959512200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144243311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71232 + ... + 73228.

It is an arithmetic number, because the mean of its divisors is an integer number (8415576).

Almost surely, 2144243310 is an apocalyptic number.

144243310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144243310 is a deficient number, since it is larger than the sum of its proper divisors (125055122).

144243310 is a wasteful number, since it uses less digits than its factorization.

144243310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 144243310 is about 12010.1336378910. The cubic root of 144243310 is about 524.4433222622.

Adding to 144243310 its reverse (13342441), we get a palindrome (157585751).

The spelling of 144243310 in words is "one hundred forty-four million, two hundred forty-three thousand, three hundred ten".

Divisors: 1 2 5 10 31 62 155 233 310 466 1165 1997 2330 3994 7223 9985 14446 19970 36115 61907 72230 123814 309535 465301 619070 930602 2326505 4653010 14424331 28848662 72121655 144243310